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Thepotemich [5.8K]
3 years ago
11

Placement.

Physics
1 answer:
stealth61 [152]3 years ago
7 0

Answer:

kinetic energy will be equal to 0

Explanation:

this is because at final position velocity of body will become zero.

kinetic energy eill be 8 times

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A car accelerates from 13 m/s to 25 m/s in 5.0 s. assume constant acceleration. what was its acceleration?
natima [27]
<span>a = 25-13/6  = 12/6 = 2 m/s^2
Av speed: 25+13/2 = 38/2  = 19 m/sec
Dist = speed * time
19 * 6 = 114 meters</span>
8 0
3 years ago
How much Power does a truck use to complete 4,100 J of Work in 30<br> seconds? *
alexandr1967 [171]

Answer:

136.67 watts

Explanation:

P=W/t

P=4100/30

P= 136.67 watts

7 0
3 years ago
What conducts heat the be best?
olga nikolaevna [1]
It just has to be metal
4 0
3 years ago
Bonus: What is the velocity of an 8 kg lead shot-put if it has 484 J of energy? Type here to search e​
Dima020 [189]

Answer:

11m/s

Explanation:

Given parameters:

Mass of the lead shot = 8kg

Energy of the shot  = 484J

Unknown:

Velocity of the shot  = ?

Solution:

To solve this problem, we apply the kinetic energy formula;

        K.E  = \frac{1}{2} m v²  

m is the mass

v is the unknown

 Now, insert the parameters and solve;

        484  = \frac{1}{2} x 8 x v²

        484  = 4v²

           v² = 121

            v  = 11m/s

7 0
3 years ago
Use differentials to estimate the amount of metal in a closed cylindrical can that is 10 cm high and 10 cm in diameter if the me
lana66690 [7]

Answer:

dV = 32.98 cm³

Explanation:

We know that

V = f ( h,r)

dV= \frac{\partial V}{\partial r}dr+ \frac{\partial V}{\partial h}dh

We also know that

V=\pi r^2h

dV= 2\pi h dr + \pi r^2 dh

Given that

h= 10 cm

d=10 cm ,  r= 5 cm

Thickness = 0.05 cm so  dr = 0.05 cm

The metal in the top and the bottom is 0.2 cm thick  so dh = 0.2 + 0.2 cm

dh = 0.4 cm

Now by putting the values

dV= 2\pi h dr + \pi r^2 dh

dV= 2\times \pi \times 5\times 0.05 + \pi \times 5^2\times 0.4\ cm^3

dV = 32.98 cm³

8 0
3 years ago
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